THEY WERE BROUGHT UNDER CONTROL. IT GIVES YOU A GOOD IDEA OF HOW BUSY FIREFIGHTERS HAVE BEEN ON THIS FOURTH OF JULY. COVERAGE OF ALL OF THESE FIRES. WE START WITH THE CAL EXPO FIRE WHICH FORCED THE CANCELLATION OF THE SACRAMENTO REPUBLIC MATCH AND NEARLY CANCELED BE FIREWORKS. WE ARE LIVE AT CAL EXPO WITH THE IMPACT. WE BEGAN WITH RICHARD SHARP WHO WAS ONE OF THE FIRST PEOPLE AT THE FIRE. SOME OF THOSE EMBERS ARE STILL BURNING TONIGHT. DOZENS OF FIREFIGHTERS OVER MY SHOULDER. TRYING TO MAKE SURE THE FIRE IS OUT AND NOTHING HAPPENED THROUGHOUT THE EVENING. THEY WILL BE HERE FOR A COUPLE OF DAYS. EVEN WHILE A FIREWORKS SHOW IS GOING ON, THEY WERE FOCUSED ON GETTING THE FIRE OUT. A FIRE SO EXPLOSIVE -- THESE ARE OAKS TREES OVER 100 FEET. CREXENDO CAME ONE FOR THE RECORD BOOKS. THIS IS SOME OF THE MOST EXTREME FIRE THE HAGER WE HAVE HAD IN RECENT MEMORY. IT TURNED OUT TO BE ONE OF THE WORST RIVER -- FIRE ON THE AMERICAN RIVER. SOME TREES 100 FEET OR TALLER ARE CONSUMED IN A MATTER OF SECONDS. THEN THE FIRE SPREADS FROM TREETOP TO TREETOP HEARING YOU CAN'T LIKE THAT. IT GENERATES MULTIPLE FIRES. ALL THE SUDDEN CON -- ALL OF THE SUDDEN, YOU HAVE MULTIPLE FIRES. THAT IT THREATENS TO GRANDSTAND. THEY TRY TO PROTECT BE STRUCTURE AND PUT OUT THE FLAMES. IT HAPPENED SO FAST, CARS COULD NOT BE MOVED. THIS HAD THE POTENTIAL TO BE ONE OF THE STORIES. CAL EXPO WAS GETTING READY FOR THE FIREWORKS. ONE OF THE BIGGEST FIRE WORKS DISPLAYS IN THE REGION. EXTRA FIREFIGHTERS WERE PUT ON HAND. THE CONDITION SO DRY, IT TOOK HUNDREDS OF FIREFIGHTERS ALMOST TWO HOURS TO CONTAIN THE FIRE. EVEN LONGER TO CONTROL IT. WE HAD DOZENS OF FIREFIGHTERS ON THE LINE WITH EXTREME FIRE BEHAVIOR. THIS COULD HAVE AND ONE OF THOSE BIG STORIES. YOU CAN SEE FIREFIGHTERS WITH LAST LIGHTS OUT THERE. A FEW EMBERS. TRYING TO MAKE SURE EVERYTHING IS OUT. THEY WILL BE HERE THROUGHOUT THE NIGHT. AS FAR AS THE CAUSE, THEY ARE STILL INVESTIGATING EVERYTHING. IT COULD BE DAYS IF NOT WEEKS FOR THEY FIGURE OUT AN EXACT CAUSED.